Results 41 to 50 of about 78,692 (167)
Stability of invariant manifold of nonlinear system of differential equations
Науковий вісник Ужгородського університету. Серія: Математика і інформатика, 2019 The theory of extensions of the dynamical equations on the torus is an important section of the theory of ordinary differential equations that is intensively evolving and has an important applied application to various tasks of science and technology ...
С. І. Балога
doaj +1 more source
Dialectical Analysis as a Research Method in the Works of L.S. Vygotsky
Вестник Московского университета. Серия 14: ПсихологияBackground. The cultural-historical theory of the development of higher mental functions by L.S. Vygotsky remains relevant and continues to be discussed by specialists from various countries.
Nikolay E. Veraksa
doaj +1 more source
Twin-width and permutations [PDF]
Logical Methods in Computer ScienceInspired by a width invariant on permutations defined by Guillemot and Marx, Bonnet, Kim, Thomass\'e, and Watrigant introduced the twin-width of graphs, which is a parameter describing its structural complexity.
Édouard Bonnet +4 more
doaj +1 more source
Scale-invariant structures of spiral waves [PDF]
Computers in Biology and Medicine, 2019 13 pages, 4 ...
Daniel Sohn +2 more
openaire +3 more sources
Invariant Kekulé structures in fullerene graphs [PDF]
Electronic Notes in Discrete Mathematics, 2013 Abstract Fullerene graphs are trivalent plane graphs with only hexagonal and pentagonal faces. They are often used to model large carbon molecules: each vertex represents a carbon atom and the edges represent chemical bonds. A totally symmetric Kekule structure in a fullerene graph is a set of independent edges which is fixed by all symmetries of the
Mathieu Bogaerts +2 more
openaire +2 more sources
Visual Computing for Industry, Biomedicine, and Art, 2022 Precise control of machining deformation is crucial for improving the manufacturing quality of structural aerospace components. In the machining process, different batches of blanks have different residual stress distributions, which pose a significant ...
Yujie Zhao +4 more
doaj +1 more source
Structured Condition Numbers for Invariant Subspaces [PDF]
SIAM Journal on Matrix Analysis and Applications, 2006 Invariant subspaces of structured matrices are sometimes better conditioned with respect to structured perturbations than with respect to general perturbations. Sometimes they are not. This paper proposes an appropriate condition number $c_{\S}$, for invariant subspaces subject to structured perturbations.
Ralph Byers, Daniel Kressner
openaire +2 more sources
Methods in PsychologyComparing relations between latent constructs across groups is essential for understanding social phenomena in different contexts. A key assumption for valid comparisons of such relations is that the constructs are measured equivalently across the groups,
Hongwei Zhao +2 more
doaj +1 more source
Structure invariance for uncertain nonlinear systems [PDF]
IEEE Transactions on Automatic Control, 1994 A unified study of three control problems associated to multi-input multi-output nonlinear systems with uncertainties is presented, namely, input-state linearization by static state feedback, input-output decoupling by static state feedback and input-output decoupling by dynamic compensation.
Castro Linares, Rafael, Moog, Claude
openaire +2 more sources
Structure of Gauge-Invariant Lagrangians
Mediterranean Journal of Mathematics, 2019 The theory of gauge fields in Theoretical Physics poses several mathematical problems of interest in Differential Geometry and in Field Theory. Below we tackle one of these problems: The existence of a finite system of generators of gauge-invariant Lagrangians and how to compute them.
Castrillón López, Marco +2 more
openaire +3 more sources